RT info:eu-repo/semantics/preprint T1 Birational transformations preserving rational solutions of algebraic ordinary differential equations A1 Ngo, L. X. Chau A1 Sendra Pons, Juan Rafael A1 Winkler, Franz K1 Rational parametrization K1 Integral curve K1 Integral birational transformation K1 Rational solution K1 Algebraic diferential equation K1 Ciencia K1 Matemáticas K1 Science K1 Mathematics AB We characterize the set of all rational transformations with the property of pre-serving the existence of rational solutions of algebraic ordinary di erential equations(AODEs). This set is a group under composition and, by its action, partitions the setof AODEs into equivalence classes for which the existence of rational solutions is aninvariant property. Moreover, we describe how the rational solutions, if any, of twodifferent AODEs in the same class are related. PB Elsevier SN 0377-0427 YR 2015 FD 2015-05-01 LK http://hdl.handle.net/10017/28564 UL http://hdl.handle.net/10017/28564 LA eng NO J.R. Sendra belongs to the Research Group ASYNACS NO Ministerio de Economía y Competitividad DS MINDS@UW RD 20-abr-2024